:root {
  --bg-primary: #030712;
  --bg-secondary: #0f172a;
  --card: rgba(15, 23, 42, 0.85);
  --stroke: rgba(148, 163, 184, 0.2);
  --text: #f8fafc;
  --muted: #94a3b8;
  --success: #22c55e;
  --danger: #f87171;
  --warning: #facc15;
  --info: #38bdf8;
  --font-sans: 'Space Grotesk', 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Space Mono', monospace;
  --grid-gap: clamp(1rem, 2vw, 2rem);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: radial-gradient(circle at 10% 20%, #0b1120, #020617 60%),
    radial-gradient(circle at 80% 0%, rgba(56, 189, 248, 0.25), transparent 45%),
    linear-gradient(135deg, #0f172a, #020617 60%);
  color: var(--text);
  min-height: 100vh;
  padding: clamp(1.5rem, 3vw, 3rem);
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--grid-gap);
}

.login-wrapper {
  min-height: calc(100vh - clamp(3rem, 6vw, 6rem));
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  width: 100%;
  max-width: 420px;
  border: 1px solid var(--stroke);
  border-radius: 1.25rem;
  padding: 2rem;
  background: rgba(2, 6, 23, 0.8);
  box-shadow: 0 25px 60px rgba(2, 6, 23, 0.7);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.login-card label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
}

.login-card input {
  border-radius: 0.9rem;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.65);
  color: var(--text);
  padding: 0.85rem 1rem;
  font-size: 1rem;
  font-family: var(--font-sans);
}

.login-card input:focus {
  outline: none;
  border-color: rgba(56, 189, 248, 0.6);
  box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.2);
}

.login-error {
  margin: 0;
  padding: 0.75rem 1rem;
  border-radius: 0.9rem;
  background: rgba(248, 113, 113, 0.2);
  border: 1px solid rgba(248, 113, 113, 0.35);
  color: #fecaca;
  font-weight: 600;
}

.login-button {
  width: 100%;
  margin-top: 0.5rem;
  background: rgba(34, 197, 94, 0.2);
  border-color: rgba(34, 197, 94, 0.6);
}

.login-button:hover,
.login-button:focus {
  background: rgba(34, 197, 94, 0.35);
}

.hero {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
  padding: clamp(1.5rem, 2vw, 2.5rem);
  border: 1px solid var(--stroke);
  border-radius: 1.25rem;
  background: rgba(2, 6, 23, 0.75);
  backdrop-filter: blur(18px);
  box-shadow: 0 25px 80px rgba(2, 6, 23, 0.65);
  animation: floatIn 600ms ease;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.25em;
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0 0 0.5rem 0;
}

.hero h1 {
  margin: 0 0 0.75rem 0;
  font-weight: 600;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.subtitle {
  margin: 0;
  color: var(--muted);
  max-width: 40ch;
}

.hero-meta {
  text-align: right;
  margin-left: auto;
}

.hero-meta p {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.hero-clock {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--info);
}

.logout-form {
  margin-top: 0.75rem;
}

.alert {
  border-radius: 1rem;
  padding: 1rem 1.25rem;
  border: 1px solid rgba(248, 113, 113, 0.35);
  background: rgba(127, 29, 29, 0.35);
  color: #fecaca;
  font-weight: 500;
  box-shadow: 0 20px 35px rgba(248, 113, 113, 0.15);
  animation: pulse 1.5s infinite alternate;
}

.alert.hidden {
  display: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--grid-gap);
}

.card {
  background: var(--card);
  border-radius: 1.25rem;
  border: 1px solid var(--stroke);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-shadow: 0 30px 60px rgba(2, 6, 23, 0.65);
  position: relative;
  overflow: hidden;
}

.card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle at top right, rgba(56, 189, 248, 0.15), transparent 55%);
  pointer-events: none;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
  position: relative;
  z-index: 1;
}

.card h2 {
  margin: 0;
  font-size: 1.2rem;
}

.card small {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.status-pill {
  border-radius: 999px;
  padding: 0.25rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.status-up {
  color: var(--success);
  border-color: rgba(34, 197, 94, 0.5);
}

.status-down {
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.5);
}

.status-warn {
  color: var(--warning);
  border-color: rgba(250, 204, 21, 0.5);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.75rem;
  position: relative;
  z-index: 1;
}

.metric {
  border-radius: 0.9rem;
  border: 1px solid rgba(148, 163, 184, 0.3);
  padding: 0.75rem;
}

.metric label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.metric strong {
  display: block;
  font-size: 1.2rem;
  font-family: var(--font-mono);
}

.sparkline {
  display: grid;
  grid-template-columns: repeat(20, minmax(6px, 1fr));
  gap: 0.3rem;
  align-items: end;
  min-height: 70px;
  position: relative;
  z-index: 1;
}

.spark-bar {
  display: block;
  border-radius: 0.4rem;
  background: var(--warning);
  opacity: 0.85;
  transition: transform 200ms ease, opacity 200ms ease;
}

.spark-bar:hover {
  transform: translateY(-4px);
  opacity: 1;
}

.spark-bar--up {
  background: var(--success);
}

.spark-bar--down {
  background: var(--danger);
}

.spark-bar--warn {
  background: var(--warning);
}

.tracer {
  border-radius: 1rem;
  border: 1px dashed rgba(148, 163, 184, 0.4);
  padding: 1rem;
  background: rgba(2, 6, 23, 0.5);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.5;
  max-height: none;
  overflow: visible;
  position: relative;
  z-index: 1;
}

.tracer pre {
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.tracer h3 {
  margin-top: 0;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.tracer .badge {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--warning);
}

.events-panel {
  border: 1px solid var(--stroke);
  border-radius: 1.25rem;
  padding: clamp(1.25rem, 2vw, 2rem);
  background: rgba(15, 23, 42, 0.8);
  box-shadow: 0 20px 60px rgba(2, 6, 23, 0.55);
}

.events-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}

.events-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.events-filter {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.events-presets {
  display: inline-flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.events-presets .button {
  padding: 0.3rem 0.6rem;
}

.button-active {
  background: rgba(56, 189, 248, 0.22);
  border-color: rgba(56, 189, 248, 0.6);
  color: #e2f4ff;
}

.events-filter label {
  font-size: 0.8rem;
  color: var(--muted);
  white-space: nowrap;
}

.events-filter input[type="date"] {
  background: rgba(30, 41, 59, 0.9);
  border: 1px solid var(--stroke);
  border-radius: 0.5rem;
  color: var(--fg);
  font-family: inherit;
  font-size: 0.85rem;
  padding: 0.35rem 0.6rem;
  cursor: pointer;
  color-scheme: dark;
}

.events-filter input[type="date"]:focus {
  outline: none;
  border-color: var(--accent);
}

.events-header h2 {
  margin: 0;
  font-size: 1.4rem;
}

.muted-text {
  color: var(--muted);
  margin: 0;
  font-size: 0.85rem;
}

.events-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.events-footer {
  display: flex;
  justify-content: center;
  margin-top: 1rem;
}

.hidden {
  display: none;
}

.event-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 1rem;
  background: rgba(2, 6, 23, 0.55);
}

.event-name {
  margin: 0;
  font-weight: 600;
}

.event-name span {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.85rem;
  margin-left: 0.5rem;
}

.event-meta {
  margin: 0.2rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.event-tags {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.3rem;
  min-width: 140px;
}

.event-status {
  padding: 0.2rem 0.8rem;
  border-radius: 999px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid currentColor;
}

.event-status--down {
  color: var(--danger);
}

.event-status--up {
  color: var(--success);
}

.event-latency {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--info);
}

.event-loss {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--warning);
  background: rgba(250, 204, 21, 0.15);
  border-radius: 0.6rem;
  padding: 0.15rem 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.button {
  border-radius: 999px;
  border: 1px solid transparent;
  background: rgba(56, 189, 248, 0.12);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.45rem 1.25rem;
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.button:focus,
.button:hover {
  outline: none;
  background: rgba(56, 189, 248, 0.25);
  border-color: rgba(56, 189, 248, 0.55);
}

.button-outline {
  border-color: rgba(56, 189, 248, 0.4);
}

.button-small {
  padding: 0.3rem 0.9rem;
  font-size: 0.75rem;
}

.button:disabled {
  opacity: 0.65;
  cursor: wait;
}

@keyframes floatIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  from {
    opacity: 0.6;
  }
  to {
    opacity: 1;
  }
}

@media (max-width: 640px) {
  body {
    padding: 1rem;
  }

  .hero-meta {
    text-align: left;
  }

  .sparkline {
    grid-template-columns: repeat(20, minmax(4px, 1fr));
  }
}